THE CEOS DATABASE : Missions, Instruments and Measurements
CEOS EO HANDBOOK – INSTRUMENT SUMMARY - SEM-N -
Full Name Space Environment Monitor - NPOESS Status Being developed
Instrument Agencies USAF Maturity Medium Heritage
Instrument Type Space environment Geometry
Instrument Technology Space environment monitor Sampling Sounding
Data Access Data Format
Measurements and Applications Used for equipment failure analysis, solar flux measurement, solar storm warning, and magnetic and electric field measurement at satellite.
Resolution Summary
Swath Summary
Accuracy Summary
Waveband Summary Senses and quantifies intensity in the sequentially selected energy bands, with energies ranging from 0.05 - 20 keV. Senses protons, electrons, and ions with energies from 30 keV to levels exceeding 6.9 MeV.
NIR (~0.75 µm - ~1.3 µm)
Instrument Measurements
CategoryParameterAccuracy
Total electron content (TEC) 
Gravity, Magnetic and Geodynamic measurementsMagnetic field (vector) 
Magnetic field (scalar) 
Instrument Missions
DWSS
NPOESS-1 - National Polar-orbiting Operational Environmental Satellite System - 1 (2013 - 2020)
NPOESS-3 - National Polar-orbiting Operational Environmental Satellite System - 3 (2018 - 2025)
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